Data Sheet. AMMP GHz Variable Attenuator. Features. Description. Applications. Package Diagram. Functional Block Diagram

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1 AMMP GHz Variable Attenuator Data Sheet Description The AMMP-663 MMIC is a monolithic, voltage variable, GaAs IC attenuator that operates from 5-3 GHz. It is fabricated using Avago Technologies enhancement mode MMIC process with backside ground vias, and gate lengths of approximately.um. The attenuator has a distributed topology and it helps to absorb parasitic effects of its series and shunt FETs to make it broadband. Package Diagram RFin 8 Vc RFout Features Surface Mount Package, 5. x 5. x 2 mm Wide Range 5-3 GHz Attenuation Range 2dB Single Positive Bias Supply Unconditionally Stable Applications Microwave Radio Systems Satellite VSAT, DBS Up / Down Link LMDS & Pt Pt mmw Long Haul Broadband Wireless Access (including and 82.2 WiMax) WLL and MMDS loops Functional Block Diagram RFin Vc top view package base: GND RFout Pin Function 1 Vc RFout RFin Attention: Observe Precautions for handling electrostatic sensitive devices. ESD Machine Model (Class A): 7V ESD Human Body Model (Class 1A): 4V Refer to Avago Application Note A4R: Electrostatic Discharge Damage and Control. Note: MSL Rating = Level 2A

2 Electrical Specifications 1. Small/Large -signal data measured in a fully de-embedded test fixture form TA = C. 2. Pre-assembly into package performance verified 1% on-wafer per AMMC-653 published specifications. 3. This final package part performance is verified by a functional test correlated to actual performance at one or more frequencies. 4. Specifications are derived from measurements in a 5 Ω test environment. Aspects of the amplifier performance may be improved over a more narrow bandwidth by application of additional conjugate, linearity, or low noise (Гopt) matching. 5. NF is measure on-wafer. Additional bond wires (-.2nH) at Input could improve NF at some frequencies. Table 1. RF Electrical Characteristics [1,2] TA= C, Zo=5 Ω Parameter Minimum Attenuation (Reference State) =7GHz =16GHz =GHz =34GHz Unit Comment db Small Signal S21 Vc=V Maximum Attenuation db Small Signal S21 Vc=V RLin and RLout at Reference State RLin and RLout at Maximum State < Typical 1 db Vc=V 1 db Vc=1.V Notes: 1. All tested parameters guaranteed with measurement accuracy ±2.5dB for Min Attenuation of 7GHz, ±1 for Min Attenuation of 16, GHz & 34GHz, ±3 for Max Attenuation of 7GHz, and ±2 for Max Attenuation of 16GHz, GHz &34GHz. Table 2. Recommended Operating Range 1. Ambient operational temperature TA = C unless otherwise noted. 2. Data obtained from on-wafer measurement Description Min. Typical Max. Unit Test Condition VC Control Current (Min Attenuation), Ic_ref VC Control Current (Max Attenuation), Ic _ref ua Vc=V ua Vc=1.V Table 3. Absolute Minimum and Maximum Ratings [1] Parameter Min. Max. Unit Comments Voltage to Control Attenuation, Vc 1.6 V RF Input Power, Pin 27 dbm Operating Channel Temperature, Tch + db Storage Temperature, Tstg -4 + C Maximum Assembly Temperature, Tmax 3 C 6 second maximum Notes: 1. Operation in excess of any one of these conditions may result in permanent damage to this device. The absolute maximum ratings for VC and Pin were determined at an ambient temperature of C unless noted otherwise.. 2

3 AMMP-663 Typical Performance (T A = C, Z in = Z out = 5 Ω) -1-2 S21at Vc=.V S21at Vc=.V S21at Vc=.4V S21at Vc=.V S21at Vc=.5V S21at Vc=.55V S21at Vc=.6V S21at Vc=.65V S21at Vc=.75V -3 5 (GHz) Figure 9. Insertion Loss vs S21at Vc=1.V Input Return Loss (db) Min Max 5 (GHz) Figure 1. Output Return Loss vs at Min Attenuation Output Return Loss (db) Min Max 5 (GHz) Figure 11. Input Return Loss vs at Max Attenuation 3

4 Figure 12a. IIP3 vs Attenuation ( = 7 GHz, Input Power = -1dBm) Figure 12b. IIP3 vs Attenuation ( = 16 GHz, Input Power = -1dBm) 4 3 IIP3 vs Attenuation, 26GHz Figure 12c. IIP3 vs Attenuation ( = GHz, Input Power = -1dBm) Figure 12d. IIP3 vs Attenuation ( = 34 GHz, Input Power = -13dBm) Figure 12e.IIP3 vs Attenuation ( = 42 GHz, Input Power = -16dBm) Figure 13a. Attenuation vs Input Power ( = 7 GHz) Vc=.V Vc=.V Vc=.4V Vc=.V Vc=.5V Vc=.55V Vc=.6V Vc=.65V Vc=.75V Vc=1.V 4

5 Vc=.V Vc=.V Vc=.4V Vc=.V Vc=.5V Vc=.55V Vc=.6V Vc=.65V Vc=.75V Vc=1.V Vc=.V Vc=.V Vc=.4V Vc=.V Vc=.5V Vc=.55V Vc=.6V Vc=.65V Vc=.75V Vc=1.V Figure 13b. Attenuation vs Input Power ( = 16 GHz) Figure 13c. Attenuation vs Input Power ( = GHz) Vc=.V Vc=.V Vc=.4V Vc=.V Vc=.5V Vc=.55V Vc=.6V Vc=.65V Vc=.75V Vc=1.V Vc=.V Vc=.V Vc=.4V Vc=.V Vc=.5V Vc=.55V Vc=.6V Vc=.65V Vc=.75V Vc=1.V Figure 13d. Attenuation vs Input Power ( = 34 GHz) Figure 13e. Attenuation vs Input Power ( = 42 GHz) 3 2-4C +C +85C C +C +85C Freq (GHz) Figure 14. Attenuation vs (Max Attenuation) Freq (GHz) Figure. Attenuation vs (Min Attenuation) Notes for Figure 12 ~ 13: 1. Attenuation is a positive number, whereas insertion loss S 21 measured on a network analyzer is a negative number. 5

6 AMMP-663 Biasing and Operation The recommended DC control voltage range is Vc= to 1 volt. A simplified schematic for the MMIC die in the package is shown in Figure 16. Vc Ordering Information Part Number Devices Per Container Container AMMP-663-BLKG 1 Antistatic bag AMMP-663-TR1G 1 7 Reel AMMP-663-TR2G 5 7 Reel RFin RFout Figure16. Simplified schematic Package Dimension, PCB Layout and Tape and Reel information Please refer to Avago Technologies Application Note 552, AMxP-xxxx production Assembly Process (Land Pattern A). For product information and a complete list of distributors, please go to our web site: Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright -213 Avago Technologies. All rights reserved. AV2-1753EN - July 9, 213